Fulling-mill.



C- C. rlARRIS.v

FULLING MILL.

APPLICATION FILED DEC. 14, 19]].

Patented July 30, 1918.

UNITED. STATES PATENT OFFICE.-

CARL CHESTER HARRIS, OF ORANGE, MASSACHUSETTS.

FULLING-MILL.

Specification of Letters Patent.

Patented aul 'so, 1918.

Application filed lJecember 14, 1917. Serial No. 207,097.

To all whom it may concern:

Be it known that I. CARL C. HARRIS, a

citizen of the United States, residing at Orange, in the county of Franklin and State of Massachusetts, have invented a new and useful Fulling-Mill, of which the following is a specification.

easily and inexpensively replaceable so that.

there is little temptation to leave them in place too long and so that the bottom plate or shoe which comes up against the press roll can be adjusted several times as it has but one wearing edge; and to provide an improved means for applying pressure to the packing box cover and varying that pressure in accordance with conditions.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Figure 1 is a side view of a fulling mill constructed in accordance with this invention;

Fi 2 is an inside perspective view with the nt wall removed;

Fig. 3 is a perspective view of the packini box looking at it from the rear, and

1g. 4, 1s a plan of the press rolls and packing box withthe whole top of the mill remov In ordinary practice the s come to the top of the mill over' a roi 10 through a stretching device 11 and between a stationary press roll 12 and a movable one 13 whic resses down on the goods between the r0112, being forced. downwardly by the pressure of springs as 14. One of the rolls, preferably the lower one, has usually been rovided with flan s at its ends of brass for the purpose of ho ding the goods and preventing them from spreading out from under the top roll when the pressure is applied.

In order to free the goods from the surface of the lower roll a brass plate or shoe I6 is carefully adjusted to partly clear the surface of the roll and the flanges. The plate 16 is mounted on the end of the bottom 18 of the packing box. This bottom is adjustably secured to the sides of the box by means of screws or bolts 42 passing through holes in the two sides of the box and passing through elongated slots 43 extending through the bottom 18. By loosening the bolts the bottom 18, and consequently the 7 plate 16 can be moved toward the roll and then the parts are tightened again by means of the screws to hold them securely. This -plate must be carefully adjusted and obviously it wears on three edges in the old construction, the .edge which engages the roll 12-.

and the two side edges which engage the rotating flanges. Evidently the wear eventually causes clearance and the goods are apt to catch and nip. Thls matter of cutting and nipping is an important disadvantage that is overcome by this invention.

According to this invention the flanges are entirely eliminated and the inside of the packing box 15 is provided with special wear strips 20 removably inserted in grooves in plates 21 which'project from the end of the packing box. The center lines of the strips 20 come at the height at which the rolls come into contact. The strips 20 take up the wear of the goods which bear'against the sides and in fact prevent the goods from catching at these points. The strips 20 can be made of extra hard wood or metal and it will be obvious that being sunply flat pieces they are much less expensive than the circular flanges would be. It is not necessary that the strips 20 should be very thick as they are backed up by the plates 21. The only wear on the late 16 comes on its front surface, whic comes close to the roll as indicated in Fig, 4. It is easil replaced or reversed and re aired.

As t e goods ass between the rol s they are received in t e packing box 15 under a pivoted cover 17 which is located over the pressure is ordinarily applied to this cover 17v so as to cause the goods to crimp up in the box before leaving. This action as usual assists in causing the'wool fiber to full.

Another feature of this invention consists in the provision of improved means for pressing this cover down. consists of a transverse rod 25 having two arms 26 and 27 fixed thereon. The arm 26 is connected to the cover by a link 28 extending downwardly while from the end of the longer arm 27 extends a link 29 parallel with the link 28 and connected with a lever 30 pivoted on the frame. On this lever are shown three weights 31, two on the operative side of the pivot and the third on the rear side tending to counteract the other two weights. These weights are provided with arms 32 and can be adjusted along the lever to quickly and accurately adjust the pressure to the varying conditions that are met with in this machine.

From this it will be seen that the cost of up-keep is materially reduced, the life of the plate 21 being increased decidedly. Because of its Side edges not wearing away it can be adjusted several times, whereas in the old case it would have to be replaced after these side edges were materially worn.

Furthermore, the strips 20 which take the place of the circular flanges constitute a decided economy both in first cost and maintenance.

Another important advantage of the double weight arm 32 is to provide a positive and reliable pressure applying means which gives a varying pressure from the very lightest to thevery heaviest and which for a certain weave or kind of goods may be adjusted to give the same results when fulling. The adjustments can be so carefully made that this is a strong advantage of the improved construction.

Although I have illustrated and described only a single form of the invention I am aware of the fact that modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore I do not wish to be limited to all the details of construction herein shown and described, but what I do claim is v 1. In a fulling mill, the combination with a pair of press rolls and a packing box, of a pair of stationary removable wear strips located near the end of the packing box and engaging the ends of the rolls.

2. In a fulling mill, the combination with a pair of press rolls and a packing box, of a pair of stationary removable wear strips extending past the ends of the rolls, and a pair of plates mounted on the packing box and extending beyond the end thereof for holding said wear strips.

3. In a fulling mill, the combination with a packing box having a bottom, and a pair of press rolls, of a shoe on said bottom extending close to one of said rolls, and a pair of stationary plates located at the ends of the rolls and the side edges of the shoe to prevent wear on said side edges.

4. In a fulling mill, the combination with a pair of press rolls and a pacln'ng box, of a pair of stationary removable wear strips in the packing box adjacent to the ends of the rolls, said packing box being provided with shallow grooves for receiving said wear strips.

5. In a fulling mill, the combination with a pair of press rolls and a packing box, of a pair of stationary wear strips extending past the ends of the rolls, a pivoted cover in said packing box, and an adjustably weighted lever for controlling the pressure on said cover.

6. In a fulling mill, the combination with a packing box, of an adjustable bottom therefor, a pair of press rolls,- a shoe on said bottom located at the lower roll, stationary side plates located at the opposite edges of said shoe for preventing the stock from spreading out under the upperroll, a cover pivotally mounted in the box over said bottom, and an adjustably Weighted-member for holding the cover down and regulating the pressure thereon.

7. In a fulling mill, the combination of a packing box having a pivoted cover, a horizontal rod above having two arms of different lengths fixed thereto, a link arranged in substantially vertical position connecting the end of the shorter arm with the cover to force it down, a second vertical link connected wiflh the end of the longer arm, a lever to which the second link is connected, and weights readily adjustable along said lever for controlling the pressure/ on said cover. p

In testimony whereof I have hereunto affixed my signature. 

